'\" t
.\"     Title: SPI_freetuptable
.\"    Author: The PostgreSQL Global Development Group
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 2021
.\"    Manual: PostgreSQL 13.3 Documentation
.\"    Source: PostgreSQL 13.3
.\"  Language: English
.\"
.TH "SPI_FREETUPTABLE" "3" "2021" "PostgreSQL 13.3" "PostgreSQL 13.3 Documentation"
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.SH "NAME"
SPI_freetuptable \- free a row set created by \fBSPI_execute\fR or a similar function
.SH "SYNOPSIS"
.sp
.nf
void SPI_freetuptable(SPITupleTable * \fItuptable\fR)
.fi
.SH "DESCRIPTION"
.PP
\fBSPI_freetuptable\fR
frees a row set created by a prior SPI command execution function, such as
\fBSPI_execute\fR\&. Therefore, this function is often called with the global variable
\fISPI_tuptable\fR
as argument\&.
.PP
This function is useful if an SPI\-using C function needs to execute multiple commands and does not want to keep the results of earlier commands around until it ends\&. Note that any unfreed row sets will be freed anyway at
\fBSPI_finish\fR\&. Also, if a subtransaction is started and then aborted within execution of an SPI\-using C function, SPI automatically frees any row sets created while the subtransaction was running\&.
.PP
Beginning in
PostgreSQL
9\&.3,
\fBSPI_freetuptable\fR
contains guard logic to protect against duplicate deletion requests for the same row set\&. In previous releases, duplicate deletions would lead to crashes\&.
.SH "ARGUMENTS"
.PP
SPITupleTable * \fItuptable\fR
.RS 4
pointer to row set to free, or NULL to do nothing
.RE
